Matthew Raymond, 2006-10-12:
> If you have a list of hyperlinks you're using for navigating a
> website, and this list is identical for all pages, you'll want to
> indicate which link points to the current page.
Most elegantly you use a |href|-less |a|.
Links inside the TOC of the page to anchors inside the current page
are easily matched by "[href^='#]'" (in CSS 3).